Evidence map›Paper›PMID 40538001›Full record

ArticleActa obstetricia et gynecologica Scandinavica2025

First birth and total fertility rate in women with surgically verified endometriosis - A nationwide register study of 18 320 women across reproductive life course.

Anni Tuominen, Liisu Saavalainen, Juuso Saavalainen, Maarit Niinimäki, Mika Gissler, Päivi Härkki, Oskari Heikinheimo

Abstract read
In one paragraph

Article in Acta obstetricia et gynecologica Scandinavica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Anni TuominenDepartment of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.ORCID https://orcid.org/0000-0002-1716-3717
Liisu SaavalainenDepartment of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.ORCID https://orcid.org/0000-0001-8002-0789
Juuso SaavalainenDepartment of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.ORCID https://orcid.org/0009-0006-2933-7805
Maarit NiinimäkiDepartment of Obstetrics and Gynecology, Oulu University Hospital, Wellbeing Services County of North Ostrobothnia, Oulu, Finland.ORCID https://orcid.org/0000-0003-0927-0472
Mika GisslerDepartment of Data and Analytics, Finnish Institute for Health and Welfare, Helsinki, Finland.ORCID https://orcid.org/0000-0001-8254-7525
Päivi HärkkiDepartment of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.ORCID https://orcid.org/0000-0003-1368-5232
Oskari HeikinheimoDepartment of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.ORCID https://orcid.org/0000-0002-8671-130X

Funding

Hospital District of Helsinki and UusimaaSuomen Kulttuurirahasto 00221053
6 · The paper itself

Abstract

introductionEndometriosis is associated with pain and infertility. However, little is known about birth rate among women with endometriosis on population level. We studied whether women with endometriosis have lower birth rate than women in the general population. MATERIAL AND

methodsThis historical population-based cohort study used data from 18 320 fertile-aged women with first surgical verification of endometriosis in 1998-2012. Women with endometriosis were further divided into sub-cohorts: women with solely peritoneal (n = 5786), ovarian (n = 6519) and deep endometriosis (n = 1267). Women with combined types and rare forms of endometriosis formed a sub-cohort of combined/other endometriosis (n = 4748). The reference cohort comprised 35 788 women. The follow-up started at the age of 15 years and ended at first birth, sterilization/bilateral oophorectomy/hysterectomy, emigration, death, age of 50 years, or December 31, 2019. From Kaplan-Meier survival curves of not giving birth, that is, until the first birth, we assessed the statistical difference of first births with crude and adjusted restricted mean survival time (RMST). In addition, we studied the fertility rate of women until the end of follow-up.

resultsAltogether 12 491 (68.2%) women with endometriosis compared with 28 871 (80.7%) reference women gave birth during follow-up. Women with peritoneal and deep endometriosis had higher first birth rate (73.1% and 71.3%) compared with women with ovarian and combined/other forms of endometriosis (65.2% and 65.5%) (p < 0.001). The RMST of not giving birth was longer in women with endometriosis 18.9 (18.8-19.0) years compared with the reference cohort 15.5 (15.4-15.6) with both crude and adjusted RMST difference (p < 0.001). Moreover, each sub-cohort showed a longer RMST of not giving birth than reference cohort (p < 0.001). Total fertility rate of women was 1.33 (SD 1.16) in the endometriosis and 1.89 (1.46) in the reference cohort (p < 0.001) with smaller differences among endometriosis sub-cohorts.

conclusionsFindings suggest that fertility outcome is compromised depending on the endometriosis subtype. Thus, timely diagnosis and appropriate treatment might be beneficial for fertility.

Indexed as

Birth RateEndometriosisFertilityAdolescentAdultCohort StudiesFemaleHumansMiddle AgedPregnancyRegistriesYoung Adultbirth ratedeliveryendometriosisfertilityinfertility

Identifiers

PMID40538001
PMCPMC12393999

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.